1. Department of Chemistry, University of Wisconsin—Madison, Madison, Wisconsin 53706, United States
2. Department of Chemistry, University of California, Irvine, California 92697, United States
3. Chemical Sciences Division, National Oceanic and Atmospheric Administration, Boulder, Colorado 80305, United States
4. Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, Colorado 80309, United States
5. Department of Chemistry, University of Colorado, Boulder, Colorado 80309, United States
6. Institute of Chemistry and Fritz Haber Research Center, Hebrew University of Jerusalem, Jerusalem 91904, Israel
7. Department of Atmospheric and Oceanic Sciences, University of Wisconsin—Madison, Madison, Wisconsin 53706, United States
8. Environmental Chemistry and Technology Program, University of Wisconsin—Madison, Madison, Wisconsin 53706, United States